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Halo 3

Xbox 360
  • 5,662,335 Achievements Earned
  • 228,693 Players Tracked
  • 79 Total Achievements
  • 7,510 Obtainable EXP
  • 1,750 Gamerscore
  • 9,497 100% Club
Assembly Skull

On Assembly, found the hidden skull.

25
25.55% Rare - 80.00 EXP

You have not earned this achievement yet